Benjamin hilbebt



@geiten tate @anni @frn IMIROVEMBNT IN LUBRIGAIORS FOR MACHINERY.

ilge rlgehnle referat in in these trttcrs tlat'cnt mit making @mit ni lgc sume.

TO ALL WHOM I'I MAY CONCERN:

Be it known that I, BENJAMIN HILBERT, of Cincinnati,Hamilton county, Ohio, have invented a new and useful Lubricator for Oiling Machinery; and I do hereby declare the following to be a full, clear, and exact description thereof, reference being had to the accompanying drawings, making part of this specication.

My invention relates to a device for lubricating those portions of machinery where friction is generated by the revolving or sliding of metallic surfaces upon cach other, particularly4 the journal hearings-'oi' shafts, and consists in an apparatus by which a quantity of oil, kept in a suitable reservoir, is supplied to the desired surfaces through a tube which allows the proper quantity to escape only when the machinery is in motion, keeping the moving surface constantly supplied. My invention possesses the following advantages over other devices for the same purpose: transparent reservoir for the oil, in which its ebb may be noted. A double tube, the outer one being screwed 4intothe box of the journal or one ofthe parts to'be lubricated, while the conducting tube of the reservoir is simply inserted in this outertube, enabling the reservoir to be easily lifted out for filling at any time without disturbingAthefadjustment. The application of the end of the conducting pipe directly to the surface of the moving metal, so that said surface when at rest closes the orifice, thereby preventing waste, and when in motion draws out mechanically, and without the necessity of heating the journal, a proper quantity of oilffor the desired purpose, the tubes, being so constructed as to enable the adjustment of the orifice to a constant and perfect contact with the metal, as the end of the tube is ground oit by friction. The reservoir being closed, may be inserted in an inclined position, if desired. y

In the accompanying drawing, A is a. globe of glass serving as a reservoir, having at its upper side a neck andvorice foi* illing. A tapped and screw-threaded metallic plug, B, is cemented into this neck and closed by a metal screw, C, and washer, c. A neck at the lower side of the reservoir A is cemented into a cup, I), of copper, or other suitable metal, through which passes a tube or pipe of theA same, E. 'This cup, Aslightly conical in shape, is ground so as to maken. perfectlytightjoint with `'4l-second cup, F, in which it rests, the cup F being the vupper portion of a tube, G, of sulicient internal diameter to allow the passage of the pipe E, and screwthreaded on the outside and screwedinto/ the box-H of ajournal bea-ring. A pinching-nut I on theouter tube serves to adjust its insertion in the box, so that the lower end of the conducting tube E may rest upon the shaft J, and as it becomes worn awpy by friction the contact may thus bo'renewed, Yso that the shaft when at rest shall close the orifice of the tube.

I claim herein :is new, and -of my invention-` f I. The transparent reservoir, consisting a glass globe, A, in which the decrease of the lubricating material may be observed Wituout detaching it from the bearing and allowing'of its insertion in an inclinedvposition.

2. A conducting pipe, E, with its end resting upon the `journal or other moving metal, so that the surface of' said metal closes the orifice when at rest, and when in motion acts mechanically to draw out a sulicient quantity of oil, as herein set forth. Y V

3. A lubricating apparatus constructed i'n two portions, one permanently attached to the box, or inother desired position, while the reservoir and conducting pipe are simply inserted in this outer pipe'so'as to be removable at pleasure.

tubes, as shown audsctfort-h.

In testimony 'of vwhich invention I hereunto set my hand.

BENJAMIN HILBERT.

v'itnessem Gno. H. KNIGHT, JAMES H. LAYMAN.

:e The arrangement of screw-threaded outer pipe Gr and pinchingfnut I to enable the adjustment of the' 

